This is the Futaba R6004FF 2.4GHz FASST 4-Channel Micro Receiver.
Compatible with the following FASST transmitters; 6EX, 7C, and the
following transmitter modules; TM7, TM8 (on 7 channel mode),
TM10 (on 7 channel mode) and TM14 (on 7 channel mode).

FEATURES:

Designed for short range application such as indoor aircraft only

Limited flight range of 300 ft (91.4m) maximum

Compatible with standard size connectors only

Easy one touch linking to transmitter

One year limited warranty

INCLUDES:

Futaba R6004FF 2.4GHz FASST 4-Channel Receiver with set up sheet

REQUIRES:

Installing in model and connecting servos and ESC

SPECS:

Dimensions: 0.81 x 1.39 x 0.30" (20.5 x 35.3 x 7.5mm)

Weight: 0.13oz (3.8g)

Power Requirement: 4.0V- 8.5V F/S and Battery

F/S function (for channel three)

Battery F/S Voltage: 3.8V

Approximate range of 300 ft (91.4m)